diff options
Diffstat (limited to 'firmware/lib/cryptolib/sha_utility.c')
-rw-r--r-- | firmware/lib/cryptolib/sha_utility.c | 118 |
1 files changed, 0 insertions, 118 deletions
diff --git a/firmware/lib/cryptolib/sha_utility.c b/firmware/lib/cryptolib/sha_utility.c deleted file mode 100644 index 38bce14d..00000000 --- a/firmware/lib/cryptolib/sha_utility.c +++ /dev/null @@ -1,118 +0,0 @@ -/* Copyright (c) 2011 The Chromium OS Authors. All rights reserved. - * Use of this source code is governed by a BSD-style license that can be - * found in the LICENSE file. - * - * Utility functions for message digest functions. - */ - -#include "sysincludes.h" - -#include "cryptolib.h" -#include "utility.h" -#include "vboot_api.h" - -void DigestInit(DigestContext* ctx, int sig_algorithm) { - ctx->algorithm = hash_type_map[sig_algorithm]; - switch(ctx->algorithm) { -#ifndef CHROMEOS_EC - case SHA1_DIGEST_ALGORITHM: - ctx->sha1_ctx = (SHA1_CTX*) VbExMalloc(sizeof(SHA1_CTX)); - SHA1_init(ctx->sha1_ctx); - break; -#endif - case SHA256_DIGEST_ALGORITHM: - ctx->sha256_ctx = (VB_SHA256_CTX*) VbExMalloc(sizeof(VB_SHA256_CTX)); - SHA256_init(ctx->sha256_ctx); - break; -#ifndef CHROMEOS_EC - case SHA512_DIGEST_ALGORITHM: - ctx->sha512_ctx = (VB_SHA512_CTX*) VbExMalloc(sizeof(VB_SHA512_CTX)); - SHA512_init(ctx->sha512_ctx); - break; -#endif - }; -} - -void DigestUpdate(DigestContext* ctx, const uint8_t* data, uint32_t len) { - switch(ctx->algorithm) { -#ifndef CHROMEOS_EC - case SHA1_DIGEST_ALGORITHM: - SHA1_update(ctx->sha1_ctx, data, len); - break; -#endif - case SHA256_DIGEST_ALGORITHM: - SHA256_update(ctx->sha256_ctx, data, len); - break; -#ifndef CHROMEOS_EC - case SHA512_DIGEST_ALGORITHM: - SHA512_update(ctx->sha512_ctx, data, len); - break; -#endif - }; -} - -uint8_t* DigestFinal(DigestContext* ctx) { - uint8_t* digest = NULL; - switch(ctx->algorithm) { -#ifndef CHROMEOS_EC - case SHA1_DIGEST_ALGORITHM: - digest = (uint8_t*) VbExMalloc(SHA1_DIGEST_SIZE); - Memcpy(digest, SHA1_final(ctx->sha1_ctx), SHA1_DIGEST_SIZE); - VbExFree(ctx->sha1_ctx); - break; -#endif - case SHA256_DIGEST_ALGORITHM: - digest = (uint8_t*) VbExMalloc(SHA256_DIGEST_SIZE); - Memcpy(digest, SHA256_final(ctx->sha256_ctx), SHA256_DIGEST_SIZE); - VbExFree(ctx->sha256_ctx); - break; -#ifndef CHROMEOS_EC - case SHA512_DIGEST_ALGORITHM: - digest = (uint8_t*) VbExMalloc(SHA512_DIGEST_SIZE); - Memcpy(digest, SHA512_final(ctx->sha512_ctx), SHA512_DIGEST_SIZE); - VbExFree(ctx->sha512_ctx); - break; -#endif - }; - return digest; -} - -uint8_t* DigestBuf(const uint8_t* buf, uint64_t len, int sig_algorithm) { - /* Allocate enough space for the largest digest */ - uint8_t* digest = (uint8_t*) VbExMalloc(SHA512_DIGEST_SIZE); - /* Define an array mapping [sig_algorithm] to function pointers to the - * SHA{1|256|512} functions. - */ - typedef uint8_t* (*Hash_ptr) (const uint8_t*, uint64_t, uint8_t*); - Hash_ptr hash[] = { -#ifdef CHROMEOS_EC - 0, /* RSA 1024 */ - 0, - 0, - 0, /* RSA 2048 */ - 0, - 0, - 0, /* RSA 4096 */ - internal_SHA256, - 0, - 0, /* RSA 8192 */ - 0, - 0, -#else - internal_SHA1, /* RSA 1024 */ - internal_SHA256, - internal_SHA512, - internal_SHA1, /* RSA 2048 */ - internal_SHA256, - internal_SHA512, - internal_SHA1, /* RSA 4096 */ - internal_SHA256, - internal_SHA512, - internal_SHA1, /* RSA 8192 */ - internal_SHA256, - internal_SHA512, -#endif - }; - /* Call the appropriate hash function. */ - return hash[sig_algorithm](buf, len, digest); -} |